It says DNS not found when I try to go to a web page

This occurs when trying to access an extremely busy site, it can also occur when your connection is bad or your connection is dropped. If you are getting consistent errors like "Host Name not found, "does not have a DNS entry",  or "Unable to locate host" it may mean the site you are trying to access is down or you have lost your connection. Remember that your connection does timeout after 15 minutes of inactivity. When this occurs, the best solution is to reestablish another connection.